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(im Model.) 2 seets-sheet 1. 0. E. PETERSON 8v G. L.u CURTIS.

WINDMILL.

Pt'enfed June 9, 1896.

6601357@ L. Chrs.

WITNESS/5S.-4

A TTOHNEYS.

(No Model.) 2 Sheets-Sheet 2. 0, E. PETERSON 8s G. L. CURTIS.

WINDMILL.

Patented June 9, 1896 W/TNESSES.'

Georg Z2 Cara's BY v y A TTOHNEYS.

UNITED f STATES .PATENT OEEiCE.

OLEF E. PETERSON AND GEORGE L. CURTIS, OF LOGAN, l'lAl-I, ASSIGNORS TO BRIGHAM O. ',IHATCIEIER, OF SAME PLACE.

WINDIVHLL.

SPCIFICATIN Vforming part of Letters Patent No. 561,914, dated .I une 9, 1896.

Application filed May 21, 1895. Serial No. 550,153. (No model.)

To @ZZ whom it may concern:

Be it known that we, OLEF E. PETERSON and GEORGE L. CURTIS, of Logan, in the county of Cache, Utah Territory, have invented a new and useful Improvement in Vliudmills, of which the following is a specification.

Our invention is an improvement in the class of windmills having a variable crankcasing of the windmill. Fig. e is a vertical section on line et a, Fig. 2.

The vertical wheel Ris keyed on the horizontal shaft C, rotating in a box B, which is slidable in a bracket or arm a, projecting from one end of the cast-iron box pr casing A, which incloses the crank-and-lever mechanism. This rotary shaft C is connected with and reciprocates the pump-rod M, that works vertically in the easing A, by means of crankand-lever mechanism now to be described. On the inner end of the wheel-shaft C, within said casing A, is fixed a crank-disk E, having a diametrical dovetail groove, in which is held a crank-arm G. The latter is slidable in said groove, but held fixed in any desired adjustment by means of a clamp-bolt. lt is thus adapted to be placed and secured at different distances, radially, from the center of the disk E for the purpose of practically varying the length of the crank to change the stroke without changing the leverage. Ilhe straight lever H has spherical ends K, one of which iits in a ball-socketL on the outer end of the crank-arm G and the other in a like socket L on the upper end of pump-rod M. The lever H has a spherical or ball fulerum I, through which it is adapted to slide freely. Such fulcrum. I is confined, but adapted to rotate in a socket or box J, formed of upper and lower segmental portions, as shown in Figs. 2 and 3, the lower portion being integral with the casing A.

The position of the wheel R and connected vparts when the wind is light is shown by full lines', Fig. 2. YAs a means for holding the wheel against the pressure of the wind we employ the toothed sector-lever F and spring N, Figs. 2 and Said lever is pivoted on a pendent arm a of the bracket a, Fig. et, and its toothed upper end meshes with a rack formed on the under side of the slidable box B, while the spring-N connects its lower end with the casing A. Since the wheel R, its shaft O, and the crank-disk G all slide together with the journal-box I3 of said shaft it is apparent the lever Il must also slide through the ball-fulcrum I and that the lengthof the stroke of the pump-rod M is varied correspondingly; and it is further apparent that this movement of parts and the variation of stroke and work done will coincide with the pressure of the wind against the wheel R. Thus with a light wind the arm of the lever H, between the fulcrum l and crank-disk E, is of maximum length, as shown by full lines, Fig. 2, so that the power of the windmill is also at its maximum. Ou the other hand, with a strong wind the wheel and its directly-connected parts are forced back, and the lever II consequently shifted lengthwise through its fulcrum l, as shown by dotted lines, Fig. 2, so that the length of the lever between the fulcrum I and crankdisk E is shortened, and the power of the same correspondingly lessened. In other words, the leverage is always so adj ustedas to be inversely to the force of the wind, so that the work which the pump has to dois automatically graduated to correspond with the power applied.

In Figs. 1 and we illustrate means for holding the wheel in the wind-namely, a hinged frame or tail-bone Q for carrying the vane, and a spring W', that holds it in normal position. The vane is provided with a pull-out chain V, that runs on pulleys supported by a lateral arm U. The box or casing A is substantially funnel-shaped in its vertical portion and turns on the flanged head IOO of the tube S, Which is in practice fixed in the framing of the Windmill. (Not shown.) It has a hinged top O, that permits convenient access to the interior.

Vhat we claim is- 1. In a windmill of the class hereinbefore specified, the Combination, with the easing,` or rotatable support, of the slidable j ournal-box, the Win d-Wheel and its shaft which is rotatable in and movable longitudinally with such journal-box, a orank keyed on the inner end of said shaft, and the pump-rod lever which is slidable in its fulcrum and has anniversaljoint connection with said crank, and means for holding the Wheelagainst the pressure of the wind substantially as shown and described.

2. In a Windmill of the class hereinbefore specified, the combination, With the easing, having a lateral arm, a journal-box slidable in said arm7 the wind-Wheel shaft journaled in and vmovable with Suchbox, the crank-disk keyed on the inner end of said shaft, being thus movable with it, a crank-arm attached to sueh disk and havin g a ball-socket, a lever having` spherical ends, one of Whieh fits rotatably in such socket, a ball-fulcrum which is rotatable in a xed`soek'et, or box, and

through Which said lever is free to slide, a

OLEF E. PETERSON. GEORGE L. CURTIS.

XVitnesses:

DAVID A. REAvILL, JOSEPH QUINNEY.

It is hereby oertied that the name of the assignee in Letters Patent No. 561,911. granted June 9, 1896-, upon the application of Olef E. Peterson and George L. Curtis, Logan, Utah, for am improvement in Windmills, was erroneously Written and printe Brigham C. Thatcher, Whereas seid name should have been Written and printe Brigham G. Thatcher; and that the said Letters Patent should be read with this eo reetion therein that the same may conform to the record of the oase in the Pate] Office.

Signed, countersigned, and seale this 30th day of J une, A. D. 1896.

[SEAL] JNO. M. REYNOLDS,

Assiste/nt Secretary of the Interior. Countersigned S. T. FISHER,

Acting Commissioner of Patents, 

